<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script src="../src/ec-do-3.0.0-beta.2.js"></script>
<script>
    let arr=[{a:1,b:2,c:9},{a:2,b:3,c:5},{a:5,b:9},{a:4,b:2,c:5},{a:4,b:5,c:7}]
    //已废除 getOptionArray
//    console.log(ecDo.getOptionArray(arr,'a,c'));
//    console.log(arr.map(item=>{return {a:item.a,v:item.c}}));
//    console.log(ecDo.getOptionArray(arr,'b'));
//    console.log(arr.map(item=>item.b));
</script>
</body>
</html>